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Question number: 160

Question

The health organization wants to study the mean weight of Indian women of the age group 30 - 40. A sample of forty woman of that age group is randomly selected and their weights in pounds are recorded.

Readings of the random sample by Health Organization for Woman

What are the readings of the family?

140

153

167

115

136

136

145

125

147

134

154

148

136

126

139

132

152

132

139

120

130

138

138

146

116

137

143

115

159

147

122

145

128

123

134

127

131

154

150

116

The calculated standard deviation is σ = 12.77. Then the 99 % confidence interval for the mean weight is